#EFD166
Closest named color: Maize (#F4D054). oklch(86.5% 0.131 93.9), rgb(239, 209, 102).
Aa
Black text reads best on this color (13.98:1).
About this color
#EFD166 is a light, moderately saturated yellow. In OKLCH its lightness is 87%, its chroma 0.131 and its hue 94°. Its hue sits on the warm side of the wheel. The nearest named color is Maize (#F4D054), ΔE 0.015 away. Black text reads best on it, at 13.98:1.
| Hue family | Yellows |
| Lightness | light (87%) |
| Chroma | moderately saturated (0.131) |
| Temperature | warm |
| Nearest name | Maize (#F4D054) |
| Black text | 13.98:1 |
| White text | 1.50:1 |
Values
| HEX | #EFD166 |
| RGB | rgb(239, 209, 102) |
| HSL | hsl(47, 81%, 67%) |
| OKLCH | oklch(86.5% 0.131 93.9) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #EFD166 | 1.50:1 | Fails | Lc -26.6 | Dividers and decoration only |
| Black text on #EFD166 | 13.98:1 | AAA | Lc 80.3 | Fine for body text |
| #EFD166 text on white | 1.50:1 | Fails | Lc 23.4 | Dividers and decoration only |
| #EFD166 text on black | 13.98:1 | AAA | Lc -79.8 | Fine for body text |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 200.
-
Step 50
50
#FAF6E5
oklch(97.2% 0.023 96)
-
Step 100
100
#F4EAC6
oklch(93.6% 0.048 94.3)
-
Step 200
200 (this color)
#EFD166
oklch(86.5% 0.131 93.9)
-
Step 300
300
#E4BD00
oklch(80.9% 0.166 93.9)
-
Step 400
400
#BF9E00
oklch(70.8% 0.145 93.9)
-
Step 500
500
#A38700
oklch(63.1% 0.129 94.2)
-
Step 600
600
#897100
oklch(55.5% 0.114 94.1)
-
Step 700
700
#745F00
oklch(49.2% 0.101 93.8)
-
Step 800
800
#5F4D00
oklch(42.6% 0.087 93.4)
-
Step 900
900
#4F4000
oklch(37.6% 0.077 93.9)
-
Step 950
950
#2F2500
oklch(26.8% 0.055 93.5)
#EFD166 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #E4CD5B | 0.022 |
| Deuteranopia (no green cones) | #ECD76B | 0.015 |
| Tritanopia (no blue cones) | #FFC3B9 | 0.119 |
| Achromatopsia (no color) | #D3D3D3 | 0.131 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #EFD166
#EFD166
oklch(86.5% 0.131 93.9)
- #C5D0FF
#C5D0FF
oklch(86.5% 0.066 274.6)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #EFD166, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Maize #F4D054 ΔE 0.015
- Light Mustard #F7D560 ΔE 0.017
- Sunglow #FFD166 ΔE 0.024
- Sandy #F1DA7A ΔE 0.026
- Dull Yellow #EEDC5B ΔE 0.033
- Sand #E2CA76 ΔE 0.033
- Saffron #E9C46A ΔE 0.037
- Pale Gold #FDDE6C ΔE 0.040
Use #EFD166 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.